71211416 has 16 divisors (see below), whose sum is σ = 133698600. Its totient is φ = 35558464.

The previous prime is 71211409. The next prime is 71211431. The reversal of 71211416 is 61411217.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 71211391 and 71211400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 971 + ... + 11973.

Almost surely, 2^71211416 is an apocalyptic number.

It is an amenable number.

71211416 is a deficient number, since it is larger than the sum of its proper divisors (62487184).

71211416 is a wasteful number, since it uses less digits than its factorization.

71211416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11818 (or 11814 counting only the distinct ones).

The product of its digits is 336, while the sum is 23.

The square root of 71211416 is about 8438.6856796541. The cubic root of 71211416 is about 414.4923700761.

The spelling of 71211416 in words is "seventy-one million, two hundred eleven thousand, four hundred sixteen".